Sampling system, pulse generation circuit and sampling circuit suitable for use in a sampling system, and oscilloscope equipped with a sampling system

摘要

A sampling system (1) is proposed which com­prises a sampling circuit (2) for supplying a signal to be sampled and a pulse generation circuit (3) for gen­erating two sampling pulses, which are opposite in phase, for the sampling circuit (2), in which system, in order to achieve as good balance as possible and in order to minimize influences due to parasitic effects which affect the balance, charge storage components are formed as the distributed capacitance of a symmetrically coupled microstrip transmission line (ptl1) and triggering and DC biasing of a step recovery diode (D3) in the pulse generation circuit (3) is carried out outside of the characteristic environment of the step recovery diode (D3) at a potential node (e3) of a reflection transmission line (rtl1, rtl2).